12252032651550 has 24 divisors (see below), whose sum is σ = 30385040976216. Its totient is φ = 3267208707040.

The previous prime is 12252032651501. The next prime is 12252032651587. The reversal of 12252032651550 is 5515623025221.

It is a super-2 number, since 2×12252032651550² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12252032651499 and 12252032651508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40840108689 + ... + 40840108988.

It is an arithmetic number, because the mean of its divisors is an integer number (1266043374009).

Almost surely, 2^{12252032651550} is an apocalyptic number.

12252032651550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12252032651550 is an abundant number, since it is smaller than the sum of its proper divisors (18133008324666).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12252032651550 is a wasteful number, since it uses less digits than its factorization.

12252032651550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81680217692 (or 81680217687 counting only the distinct ones).

The product of its (nonzero) digits is 180000, while the sum is 39.

Adding to 12252032651550 its reverse (5515623025221), we get a palindrome (17767655676771).

The spelling of 12252032651550 in words is "twelve trillion, two hundred fifty-two billion, thirty-two million, six hundred fifty-one thousand, five hundred fifty".